I think Test Driver actually uses 16mm film, like Wild Gunman and the like.
Confirmed. This means (basically) that it's not really an Undumped wiki target as (generally speaking) there's no CPU, program code, or even complex transistor-transistor logic. Hence no entry for Test Driver. MAME currently has no framework to simulate a game that uses 16mm film and a high-level list of jump points provided by electromechanical schematics. Probably best targeted towards a spin-off project.
We'd need to see schematics/circuitboards that power these games to say for sure. With the exception of the Laser Clay Shooting System, which we're a little unsure about, we've been trying to keep electromechanical games out of the wiki. They may have films, but there's nothing MAME can emulate at a low-level. (Most of these tagged along via other information sources we imported:
https://mamedev.emulab.it/undumped/index.php?title=Category:Electromechanical )
The EVR games are probably "on the bubble" so to speak, and we need to learn more about their hardware.